PPT-Peripheral Nervous System (PNS)

Provides links from and to world outside body All neural structures outside brain Sensory receptors Peripheral nerves and associated ganglia Efferent motor endings Sensory Receptors Specialized to respond to changes in environment . Pescara. A.S. 2014-15. PRESENTATION. :. THE CNS (Central . Nervous. System). a. nd . THE PNS (. Peripheral. . Nervous. System). English . Teacher. : . Miscia. Roberta. What is the nervous system?. Scalp and skin. Protection of the Central Nervous System. Figure 7.17a. Meninges. Dura mater. Double-layered external covering. Periosteum. —. Meningeal. . Layer-. Folds inward in several areas. Meninges. Peripheral Nervous System. The Nervous System. Central Nervous System. The Nervous System. Central Nervous System. Central Core. Limbic System. Cerebrum. The Nervous System. Central Nervous System. Central Core. Functions of the Nervous System. Sensory input. Information gathered by sensory receptors about internal and external changes . Integration. Interpretation of sensory input. Motor output. Activation of effector organs (muscles and glands) produces a response. . chapter 29 in text. Objectives and Questions:. 1. I can describe the functions of the nervous system. 2. . I can describe the parts of a neuron cell and identify how they transmit electrochemical impulses.. Peripheral Nervous System. Autonomic Nervous System. Allied Health I. Central Nervous System. Communication and coordination system of the body. Seat of intellect and reasoning. Consists of the brain, spinal cord, and nerves. Spinal Cord Anatomy. Extends from the foramen magnum of the skull to the first or second lumbar vertebra. Provides a two-way conduction pathway from the brain to and from the brain. 31 pairs of spinal nerves arise from the spinal cord. The Nervous System: Communication. Neurons are masses of nerve cells that transmit information. Three main components:. (1) Cell Body – contains the nucleus and two extensions. (2) Dendrites – shorter, more numerous, receive information. Brain. Spinal Cord. Nerves. Vocabulary to Know . Homeostasis. The regulation of steady, life-maintaining conditions inside an organism, despite changes in its environment . Nerve Cells . Neurons. Basic functioning units of the nervous system . 17.4 The Peripheral Nervous System. The peripheral nervous system is composed of nerves and ganglia. . Nerves . are bundles of axons. . Ganglia . are collections of cell bodies. . The peripheral nervous system is subdivided into the somatic system and the autonomic system. . Ms. Sallo. AP . Psychology. March 8, 2016. Peripheral Nervous System (PNS). Def: made up of all those nerves that lie outside the brain and spinal cord. . Nerves are bundles of axons that are routed together in the PNS. Thes a network of nerves and cells working to carry messages to and from the brain and spinal cord to various parts of the body FUN FACTThe number of stars in the Milky Way is less thanthe number of n (CNS) AND THE PERIPHERAL NERVOUS SYSTEM (PNS) Learning objectives: The nervous system in humans is a complex integration of organs like brain, spinal cord and sensory organs along with nerves. N Today. ’. s lecture. -What are nervous systems for. -A diversity of nervous system organizations. -Information processing. -A review of neuron structure. -Resting Potential. -Action potentials. -Synapses and neurotransmitters.